package org.javacore.thread;

/*
 * Copyright [2015] [Jeff Lee]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @author Jeff Lee
 * @since 2015-11-2 16:56:43 Runnable接口的实现类LiftOff
 */
public class LiftOff implements Runnable {

	protected int countDown = 10;
	private static int taskCount = 0;
	private final int id = taskCount++;

	public LiftOff() {
	}

	public LiftOff(int countDown) {
		this.countDown = countDown;
	}

	public String status() {
		return "#" + id + "(" + (countDown > 0 ? countDown : "LiftOff!") + "), ";
	}

	@Override
	public void run() {
		while (countDown-- > 0) {
			System.out.println(status());
			// 暂停当前正在执行线程，并执行其他线程。
			Thread.yield();
		}
	}
}
